package net.oschina.simpleplus.utils;


import java.io.*;
import java.net.URL;
import java.security.CodeSource;
import java.util.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import com.google.common.io.CharStreams;

import net.oschina.simpleplus.GeneratorApplication;

public class DirectoryUtil {

    private static int fileLevel;


    private static String createPrintStr(String pathname, int level) {
        String printStr = "";
        for (int i = 0; i < level; i++) {
            printStr = printStr + "│   ";
        }
        printStr = printStr + "├── " + pathname;
        return printStr;
    }


    private static void printDir(String dirPath) {
        String[] dirNameList = dirPath.split("\\\\");
        fileLevel = dirNameList.length;
        for (int i = 0; i < dirNameList.length; i++) {
            System.out.println(createPrintStr(dirNameList[i], i));
        }
    }


    public static void readFile(String dirPath) {

        Set<String> ignoreDirNamesSet = new HashSet<>();
        ignoreDirNamesSet.add(".idea");
        ignoreDirNamesSet.add("target");
        File file = new File(dirPath);
        File[] list = file.listFiles();
        for (int i = 0; i < list.length; i++) {
            if (list[i].isDirectory()) {

                if (ignoreDirNamesSet.contains(list[i].getName())) {
                    continue;
                }

                System.out.println(createPrintStr(list[i].getName(), fileLevel));
                fileLevel++;
                readFile(list[i].getPath());
                fileLevel--;
            } else {
                if (list[i].getName().trim().startsWith(".")) {
                    continue;
                }
                System.out.println(createPrintStr(list[i].getName(), fileLevel));
            }
        }
    }


    public static String readFile2String(String dirPath) {

        StringBuffer sb = new StringBuffer();
        Set<String> ignoreDirNamesSet = new HashSet<>();
        ignoreDirNamesSet.add(".idea");
        ignoreDirNamesSet.add("target");

        File file = new File(dirPath);
        File[] list = file.listFiles();
        for (int i = 0; i < list.length; i++) {
            if (list[i].isDirectory()) {

                if (ignoreDirNamesSet.contains(list[i].getName())) {
                    continue;
                }

                sb.append(createPrintStr(list[i].getName(), fileLevel)+"\n");
                fileLevel++;
                sb.append(readFile2String(list[i].getPath()));
                fileLevel--;
            } else {
                sb.append(createPrintStr(list[i].getName(), fileLevel)+"\n");
            }
        }

        return sb.toString();
    }



    public static void copyFolder(File src, File dest, final Set<String> ignoreFileSuffixs) {

        CodeSource codeSource = GeneratorApplication.class.getProtectionDomain().getCodeSource();
        String location = codeSource.getLocation().getPath();

        if(location.endsWith(".jar")){
            String relativeSrcPath = "template/common/pagetemplate/static/";
            if (src != null) {
                URL jar = codeSource.getLocation();
                ZipInputStream zip = null;
                try {
                    zip = new ZipInputStream(jar.openStream());
                } catch (IOException e) {
                    e.printStackTrace();
                }
                while(true) {
                    ZipEntry zipEntry = null;
                    try {
                        zipEntry = zip.getNextEntry();
                    } catch (IOException e1) {
                        e1.printStackTrace();
                    }
                    if (zipEntry == null)
                        break;
                    String name = zipEntry.getName();
                    if (name.startsWith(relativeSrcPath)&&(name.endsWith(".js")||name.endsWith(".css") || name.endsWith(".html"))) {

                        try {
                            InputStream inputStream = GeneratorApplication.class.getClass().getResourceAsStream(File.separator+name);
                            String text = CharStreams.toString(new InputStreamReader(inputStream, "UTF-8"));
                            //System.out.println(text);
                            String filePath = dest.getPath() + name.replace(relativeSrcPath,File.separator);
                            File newFile = new File(filePath);
                            if(!newFile.exists()){
                                newFile.createNewFile();
                            }

                            FileOutputStream fos = new FileOutputStream(newFile);
                            fos.write(text.getBytes());
                            fos.flush();
                            inputStream.close();
                            fos.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
            return;
        }


        if (src.isDirectory()) {
            if (!dest.exists()) {
                FileUtil.mkdir(dest.getPath());
            }
            String files[] = src.list();
            for (String file : files) {

                boolean flag = false;
                for (String ignoreFileSuffix : ignoreFileSuffixs) {
                    if (file.endsWith(ignoreFileSuffix)) {
                        flag = true;
                        break;
                    }
                }
                if (flag)
                    continue;
                File srcFile = new File(src, file);
                File destFile = new File(dest, file);
                copyFolder(srcFile, destFile, ignoreFileSuffixs);
            }
        } else {
            InputStream in = null;
            try {
                in = new FileInputStream(src);
                OutputStream out = new FileOutputStream(dest);

                byte[] buffer = new byte[1024];

                int length;

                while ((length = in.read(buffer)) > 0) {
                    out.write(buffer, 0, length);
                }
                in.close();
                out.close();
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    }


    public static ArrayList<File> getListFiles(Object obj) {
        File directory = null;
        if (obj instanceof File) {
            directory = (File) obj;
        } else {
            directory = new File(obj.toString());
        }
        ArrayList<File> files = new ArrayList<File>();
        if (directory.isFile()) {
            files.add(directory);
            return files;
        } else if (directory.isDirectory()) {
            File[] fileArr = directory.listFiles();
            for (int i = 0; i < fileArr.length; i++) {
                File fileOne = fileArr[i];
                files.addAll(getListFiles(fileOne));
            }
        }
        return files;
    }

}
